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UNTTEE STATES PATENT @EETQE.

PIERRE ANDRE OHATENET, OF PARIS, FRANCE.

STEAM-G EN ERATOR.

SPECIFICATION forming part of Letters Patent No. 487,551, dated December 6, 1892.

Application filed May 81,1892- Serial No. 434,943. (No model.) Patented in France May 16, 1890, No. 205,675.

To all whom it may concern.-

Be it known that I, PIERRE ANDRE CHATE- NET, a citizen of the Republic of France, and a resident of Paris, Department of the Seine, France, have invented new and useful Improvements in Steam-Generators, (for which I have obtained a patent in France, No. 205,675, dated May 16, 1890,) of which the following is a specification.

The object of the invention is to provide a new and improved steam-generator which is simple and durable in construction and arranged to quickly and economically generate steam.

The invention consists principally of a tubular casing adapted to be heated and closed at its ends, the said casing being connected at one end with a Water-charging device arranged to spray the water in a finely-divided state into the said casing at one end thereof, and a tube held within the casing and opening into the latter at the end opposite to the charging device, the exterior of the said tube forming, with the inner surface of the casing, a narrow annular space for the passage of the vapor passing from the inlet to the open inner end of the tube.

The invention also consists of certain parts and details and combinations of the same, as will be hereinafter described, and then pointed out in the claims.

Reference is to be had to the accompanying drawings, forming a part of this specification, in which similar letters of reference indicate corresponding parts in all the views.

Figure 1 is a sectional side elevation of the improvement. Fig. 2 is an inverted sectional plan view of the same on the line 2 2 of Fig. 1. Fig. 3 is an enlarged sectional side elevation of the charging device. Figs. 4 and 5 are similar views of the same With parts in different position, and Fig. 6 is sectional plan view of the same on the line 6 6 of Fig. 5.

The improved steam-generator is provided with a casing A, preferably made in tubular form, closed at one end B and closed at its other end by means of a cap 0, which also forms the outlet for the steam generated within the casing A, as hereinafter more fully described. I

The casing A is adapted to be heated exteriorly by any suitable means, and a series what reduced from the body of the tube E and opens into a discharge-port F, arranged in the cap 0 and leading either to a steam-storage vessel, as before mentioned, or directly to the engine to be driven. The tubeE is of such a size as to form a very narrow space between it and the inner surface of the casing A, so that the water or vapors entering the said tube by the charging device D will pass in a finely-divided state through this narrow space to the end B of the casing A, to then enter the tube E and pass through the same into the neck E and finally into the port F to pass to its destination.

The charging device D (shown in detail in Figs. 3, 4, 5, and 6) is provided with an inlet G, connected with a suitable source of watersupply, the inner end of the said inlet opening into the seat 11 having a valve-plug I fitted in the said seat and provided at one end with a square offset 1 for conveniently turning the said plug in its seat, for the purpose hereinafter lnore fully described.

In the plug I is formed a recess 1 adapted to connect with the inner end of the inlet G, so that the water passes from the latter to the said recess and then to a circular recess J, formed in a valve-plug J, screwing in the plug I. From the inner end of this recess J in the plug J lead ports J to an annular recess J formed in the screW-plugJ within the opening I in the plug I, and from this opening the water passes past the conical valve J formed on the inner end of the plug J, into an outlet-port K, connecting with an opening 0, formed in the cap 0 and leading to theinterior of one end of the casing A. The valve J 4 is arranged opposite a similarly-shaped valve-seat 1 formed in the valve-plug I, and by screwing the screwing-plug J farther out or in of the said plug 1 the opening between the seat I and the correspondingly-shaped valve J can beincreased or diminished to admit more or less water to the port K. In order to screw this plug J farther out or in the plug I, the latter has to be turned into the position shown in Fig. 4, so that the inlet G is disconnected from the recess I and the latter connects with an opening L, formed in the body of the charging device. The operator 110W has access through this opening L to the plug J, so that the latter can be turned by a screw-driver or other means to screw it in or out to diminish or increase the opening between the valve J and the seat 1 In order to enable the operator to see how much water passes into the port K, the operator turns the valve-plug I into the position shown in Fig. 5, so that the recess 1 is connected with the inlet G, but the valve-seat 1 leads into the opening L. Now the operator can observe how much water passes through the plug I and out of the valve-seat I at a given time,and also whether it is SIIIIICIQIILIydIVIdGd forbeingquicklygeneratedintosteam. When this has been determined, the operator turns the plug back to the normal position shown in Fig. 3, so that the water entering the inlet G passes to the recess I into the recessJ, and from the latter-through the ports J into the annular recess J and from the latter through the space between the valve J and the seat I into the port K, and then through the opening 0 into that end of the casing A containing the neck E of the tube E. Now it will be seen that as the tube A is heated the finely-divided water entering the tube A is quickly generated into vapor and passes down the space between the tube E and the casing A to the end B of the tube A, and then into the open end of the tube E, to pass up the same to the neck E, and finally into the opening F and out of the generator. It will be seen that by this process the water is quickly generated into steam, as it passes into the tube A in a finely-divided state, and is consequently in this state quickly generated into its vapor form, highly heated in this form, so as to escape as dried steam from the tube E to the steam-receiving vessel or to the engine to be driven.

Having thus fully described my invention, I claim as new and desire to secure by Letters Patent 1. A generator comprising a casing adapted to be heated and closed at its ends, a watercharging device arranged at one end of the said casing and serving to charge the water in a fiuely-divided state into this end of the casing, and a tube held within the casing and opening into the latter at the end opposite the charging device, the exterior of the said tube forming, with the interior surface of the casing, a narrow annular space for the passage of the vapors passing through the casing to the open end of the said tube, substantially as shown and described.

2. A generator provided with a charging device comprising an inlet and an outlet, a valve-plug mounted to turn and connected with the inlet and outlet, and a screw-plug held adj ustably in the said valve-plug and formingaspraying device with the latter, substantiaily as shown and described.

A charging device comprising a valveplug connected with an inlet and an outlet and having a conical valve-seat, and a screwplug screwing in the said valve-plug and having a conical valve arranged opposite thesaid alve-seat, the said screw-plug being provided with a recess connected with the waterinlet and from which lead ports to an annular recess in the said screw-plug, the said annular recess discharging into the said conical valve and its seat-,substantially as shown and described.

In testimony that I claim the foregoing as my invention I have signed my name,'in presence of two witnesses, this 8th day of April, 1892.

PIERRE ANDRE CIIATENET.

\Vitnesses:

ROB'I. M. I-IooPER, ARTHUR Goon. 

